Maximum spec of nRF52832

[Youngjun]

Hi, 

I am designing a bio-signal measurement circuit using nrf52832.

I wonder if there is any problem with the performance of nrf52 when using the sensor below.

• Sensor1
  • spi 
  • realtime tx
  • 250sps data : 6byte x 250sample /s = 1500byte/s
• Sensor2
  • spi 
  • realtime tx
  • 100sps data : 9byte x 100sample / s = 900byte/s
• Sensor3
  • spi
  • realtime tx
  • 100sps data : 12byte x 100sample /s = 1200byte/s

And, How can i check maximum spec(like cpu, memory in windows system) of nRF52832?

[ovrebekk]

Hi

The nRF52832 should not have any problems matching this requirement. The SPI master interfaces can be clocked up to 8MHz, which means the maximum throughput is close to 1 Mbyte/s. 

The main reference document for the nRF52832 is the Product Specification (datasheet), which is available here. 

Best regards
Torbjørn

[Youngjun]

Thanks.

And, is it possible to send above data using ble to central device by realtime?

[ovrebekk]

Hi 

If I am not mistaken the total bandwidth of this application would be around 28.8kbps?

The nRF52832 can do up to about 700kbps in 1M mode, and double that in 2M mode (Bluetooth 5 or later required). 

Please be aware that when communicating with a non Nordic host such as a phone or a PC the host could have it's own limitations affecting transfer rate, but most BLE devices should be able to handle 28.8kbps without any problems. 

Best regards
Torbjørn